项链
xiàng liàn · HSK 7
necklace
📿 项链 = 项 (neck) + 链 (chain): a neck-chain is a necklace
项 means neck or nape; 链 means chain or link. Put them together and a neck-chain is exactly a necklace. The classifier 條/条 (tiáo) counts long thin things, which fits a chain.
项 — 工 (gōng, phonetic) + 頁/页 (head)
项 originally meant the nape or back of the neck, with 頁 (head) giving the meaning and 工 supplying the sound. Over time it broadened to mean 'item' or 'category,' as in 项目 (project/item), while the original neck sense survives in compounds like 颈项.